"We must dare to think 'unthinkable' thoughts. We must learn to explore all the options and possibilities that confront us in a complex and rapidly changing world." - Senator J. William Fulbright

In addition to this blog, I write a blog for my students in Pennsylvania to share our experiences here in Finland. My husband, a high school astronomy teacher, just did an awesome guest post for my students. He explained what causes Aurora Borealis in the video below. In under two minutes, he gives a simplified, elementary friendly explanation. I thought it was too good not to share here as well. Of course, if anyone is interested in a more detailed explanation, feel free to send a question via the comments below. Without further ado, here is my brilliant husband: